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High-Performance O-Ring Cord Stock & Custom Extruded Rubber Profiles
Precision-engineered sealing solutions for industrial maintenance, rapid prototyping, and large-diameter applications. As a leading manufacturer in China, OringWorld delivers ISO-certified cord stock with 35%+ cost efficiency and global engineering support.

Versatile Sealing Solutions for Demanding Industrial Environments
O-Ring cord stock serves as a critical component for engineers and maintenance professionals who require immediate, custom-sized sealing solutions. Unlike standard molded O-rings, cord stock offers the flexibility to create seals of any diameter, making it indispensable for large-scale equipment, static face seals, and emergency repairs.
Rapid Prototyping
Eliminate the lead times and tooling costs associated with custom molded seals.
Precision Extrusion
Manufactured to strict ISO 3302-1 Class E1 tolerances for consistent performance.
Material Versatility
Available in a comprehensive suite of elastomers to withstand extreme temperatures.
Technical Specifications & Material Compatibility
| Material | Temperature Range | Key Properties | Typical Applications |
|---|---|---|---|
| Nitrile (Buna-N) | -40°C to +120°C | Excellent oil & fuel resistance. | General industrial, automotive. |
| Viton™ (FKM) | -20°C to +200°C | High-temp & chemical stability. | Aerospace, chemical plants. |
| Silicone (VMQ) | -60°C to +230°C | Thermal range, FDA grades. | Medical, food processing. |
| EPDM | -50°C to +150°C | Weather, steam, ozone resistance. | HVAC, water treatment. |
Custom Extrusion & Vulcanized O-Ring Fabrication
Beyond standard circular cord stock, OringWorld specializes in the production of custom extruded profiles tailored to unique groove geometries. Our engineering team works closely with clients to develop complex shapes, including Square, D-shape, and Rectangular profiles.
Frequently Asked Questions
What is the difference between cold bonding and hot vulcanizing?
Cold bonding uses a cyanoacrylate adhesive to join the cord ends, which is suitable for quick repairs. Hot vulcanizing involves a heat-cured chemical process that creates a much stronger joint, ideal for high-pressure environments.
How do I calculate the length of cord needed for a custom O-ring?
To calculate the required length, use the formula: Length = (Mean Diameter) × π. The mean diameter is the average of the inner and outer diameters of the seal.